Metal window frame and sash



.July 7, 1925. 1,544,732

C. D. ENOCHS ET AL METAL WINDOW FRAME AND 5555 Filed June 7, 1924 2Sheets-Sheet l vi] 1 II 62.4 05') [Frat ls 1/01/05 6 420 alike: new

July 7, 1925. 1,544,732

C. D. ENOCHS ET AL METAL wmnow FRAME AND SASH Filed June 7, 1924 2Sheets-Sheat 2 v VIII/[III] 4 I attozuaq Patented July 7, 1925.

UNITED STATES CLAUDE .D. ENO'CHS AND JIl'LIUS I. BARON,

OF MINNEAPOLIS, MINNESOTA, ASSIGNORS TO STREMEL BROTHERS, 0FMINNEAPOLIS, MINNESOTA.

METAL WINDOW FRAME AND SASH.

Application filed J une 7,

To all whom it may concern:

Be it known that we, CLAUDE D. ENooHs, a citizen of the United States,and a resident of Minneapolis, in the county of Hennepin and State ofMinnesota, and JULIUS J. BARON, a citizen of the United States, and aresident of Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in MetalWindow Frames and Sashes, of which the following is a specification.

One object of our invention is to provide in a metal window frame ahollow jamb having a vertical tubular well formed in the inner wallthereof to conceal the sash chain.

Another object is to provide in a metal jamb a vertical tubularwellhaving a verti cal slot in the outer wall thereof to receive the sashside rail plates.

Another object is to provide an improved form of hollow jambconstruction that will allow the ready removal of both sashes.

Another object is to provide a sash guide plate well of smallcross-sectional area to reduce the passage of air around the edges ofthe sash plate.

Another object is to provide in a hollow jamb independent compartmentsfor weights and that portion of the weight chains vertically above thesash side plates.

Another object is to provide an improved form of lintel having ahorizontal slot in the bottom wall thereof leading into an enclosedcompartment for the upper sash plate.

Another object is to provide lintel and jamb constructions of greatrigidity.

Another object is to provide improved means for joining jambs, linteland sill.

Another object is to provide an improved form of thin sash construction.

Another object is to provide an improved meeting rail between sashes.

Another object is to provide an improved form of pulley block mountingwhereby pulleys may be readily re laced.

With these and inci ental objects in view, the invention consists ofcertain novel features of construction and combination of parts, theessential elements of which are hereinafter described with reference tothe drawings which accompany and form a part of this specification.

In the drawings Figure 1 is a side eleva- 1924. Serial No. 718,671.

tion of a window embodying our invention; Figure 2 1 s'a perspectiveview of one of the upper Jamb and lintel connecting castings; Figure 3is a plan view of one of the removable pulley mounting blocks; Figure 4:1s a section taken on-the line 4-4,

Figure 1; Figure 5 is a section taken on line 55, Figure 4; Figure 6 isa section taken on the line 66, Figure 1; Figure 7 is a sectional viewof the center sill casing taken on the line 77, Figure 8; Figure 8 1s asection taken on the line 8-8, Figure 7; Figure 9 is a perspective viewof one of the sill and jamb connecting blocks.

The window frame consists of a lintel 1, sill 2, and right and leftjambs 3, connected by top castings 4 and bottom castings 5, W1th acenter sill casting 6 to reinforce the center of the sill.

The jambs 3 are mounted on the castings 5 and thereby connected to thesill 2, and are preferably formed of fiat sheet metal plates.

A vertical metal plate 7 has a hp 8 folded back on itself, as shown inFigure 6, and is then bent at four right angles to form the jamb proper.The metal is further extended by return bend 9, which is extended toform the wall 10, which is bent at right angles to form the wall 11 andagain at right angles to form the wall 12, which is bent back on itselfat 13 and then formed into the lip 14.

Between the lip 14 and the wall 13 is a plate 15, which Is bent at rightangles to form the plate 16, which is again bent at right angles to formthe plate 17 and again bent at right angles to form the plate 18, afurther right angle bend to form the plate 19, a further right anglebend forms the plate 20, a further right angle bend forms the plate 21,which is bent back into a lip 22 and between the lip 22 and the plate 21is a plate 23, which is bent at right angles and again to form the plate25, again to form the plate 26, again to form the plate 27, which isbent back on itself to form the plate 28. This plate 28 is bent at rightangles to form the plate 29. which is bent back on itself at 30 and thisextension is bent to form the plate 31, which in turn is bent back onitself at 32.

It will be seen that the jamb is formed of three independent verticalplates so formed as to form the complete jamb, and that one of theseplates forms the outer jamb portion 33, while the second one forms achannel 34, and that the second plate in combination with the thirdplate forms a tubular well with the vertical slot 36 opening toward thewindow sash.

A vertical parting strip 37 mounted on the second of these formed platesserves to close the channel 34, leaving only vertical slot 38 and alsopartly closes the vertical slot 36. It will be noted that thisconstruction of plates and arting strips forms two vertical tubular wels, these wells being exterior of the jamb itself but partially formedby the outer walls of the amb. Side plates 39 and 40 on window sash 41and 42, respectively, are mounted for vertical movement in these slotsand two portions 43 of each plate are thrown out to form bearing pointsagainst the walls of the tubular wells to guide the window sash.

It will be seen that the parting strip can be removed by taking out thescrews 44 and that by taking out the screws 45 the entire inner wall ofthe jamb, back to the point 13, can be moved upwardly as viewed inFigure 6 swinging the sash with it, thus allowing ready removal of thesash and complete access to the interior of the jambs.

The two weight chain pulleys 46 and 47 (see also Figure 5) are carriedby the mounting blockl 48, which is mounted on the top jamb and lintelconnecting casting 5 by the single screw 49 so that a broken pulley mayreadily be replaced.

The lintel, better shown in Figure 4, is of the same type ofconstruction, the main top and side portions being formed of a singlesheet of metal 50. An angle 51, together with the plate 52, is fashionedto form a tubular compartment 53 and passes horizontally across thebottom of the lintel as the plate 54, then vertically upward at 55 whereit is formed back and united to plate 50 by screws 56. This tubularcompartment 53 serves the same function with regard to the upper sashplate 57 as do the vertical tubular wells of the jamb.

The castings 5 out around their are recessed or rabbetted erimeter toreceive the jambs and sill, as s own in Figures 4, 5 and 9, so that thejamb is rigidly fastened to this casting, as is likewise the sill,thereby giving a firm and solid joint between jamb and sill and at thesame time presenting a pleasing appearance where the casting and silland jamb meet.

The window sash 41 is formed of the side plates 39 to which are fastenedvertical 2 bars 58 and in the channel formed thereby the glass 59 issuitably mounted, ordinarily with some form of cement.

- The upper sash rail consists of the plate 57 to which is fastened theplate 60 formed at right angles into a meeting plate 61st the top and atthe bottom into a plate 62, which, with the plate 57, forms a channel toreceive the glass.

The lower rail is formed of the plate 63 which has fastened thereto theplate 64 formed at right angles to make the plate 65 and again upwardlyat right angles to form the plate 66.

The plate 64 is formed at 67 to form with the plate 63 the channel forthe glass and is also formed over at right angles to form the horizontalplate 68 which is brought down at the lip 69.

The upper rail of the lower sash has the plate 70 formed with a lip 71similar to the lip 69 and adapted to lock therewith, and the other edgeis formed downwardly into the plate 7 2, which is joined with the plate73 with a spacing channel 7 4 therebetween forming the upper channel forthe sash of the lower glass.

Muntin strips where used are formed of two plates 75 and 76 with spacingchannels 77 therebetween, thereby forming channels to receive the glass.

The lower rail of the lower sash is formed of the plate 78 to which isjoined the plate 79, formed at 80 into a channel to receive the glass,and at its lower edge is bent to form the plate 81, which is bentdownwardly to form the lip 82, which meets the sill at 83.

The top rail of the lower sash carries the Z bar 84 which has a weatherstrip 85 carried thereby which meets the lip 66 of the meeting rail ofthe upper sash.

This form of sash construction provides a sash of unusual thinnesswithout sacrificing strength and rigidity and also provides a thinmuntin strip, makin an unusually pleasing appearance from either side ofthe window. Also the construction of the jambs and the lintel gives amuch greater rigidity and strength than has heretofore been obtained inhollow jambs formed of sheet metal.

In the case of the jambs this rigidity comes from the formation of thetubular wells, while in the lintel it is obtained through partment, ineither case the construction eing much more rigid than as if the sashthe formation of the hollow complates were allowed to enter the jambthrough a vertical slot instead of being housed within wells andcompartments exterior of the hollow jambs and lintels.

While we have described our invention and illustrated it in oneparticular design, we do not wish it to be understood that we limitourselves to this construction, as it is evident the application of theinvention may be varied in many ways within the scope of the followingclaims:

1. In a hollow frame a hollow jamb formed of three vertical metalplates, the first of said plates being formed into a submeet the extremeend of sai U shape stantially C sha ed cross section and having one endof the formation formed back on itself and continued into asubstantially U shaped formation, a second plate formed into asubstantially channel sha havin aflip ormation and having its oppositeedge formed to form one wall of a tubular well, said third plate unitingwith the outer edge of said second plate and formed to form the otherwalls of said tubular well, said plate extending therefrom and formed tomeet the opposite end of the C shape of said first named plate.

2. In a metal window frame the combination with a bent plate forming theexterior wall of a hollow jamb, of a second plate j oined to said firstnamed plate to form part of the interior wall of said hollow jamb, saidsecond named plate being bent to form a vertical channel exteriorof'said jamb, and a plate joined to said last named plate and coveringpart of said channel forming a vertical tubular well having a verticalslot therein. 1

3. In a metal window frame the combina tion with a hollow jamb having avertical tubular well and a vertical channel formed by the exteriorsurface of the inner wall thereof, of a flat partin strip carried bysaid inner wall and exten mg well beyond the adjacent wall of saidchannel and partly closing said channel to form thereby the secondtubular well, each of said wells having vertical slots openingtherefrom, window sash having side lates extending .into said wellsthrough said vertical slots.

4. In a hollow jamb the combination with a vertical plate forming theouter and front and rear walls of said-jamb, of an inner wall for saidjamb detachably joined to said first named plate and having formedtherein a vertical tubular well ositioned exteriorally of saidjamb tofac itate the removal of sash carried by said jamb.

5. In a metal window frame the combination with a vertical plate bent toform the front, rear, and outer wall of a hollow j amb of two. platesjoined and bent to form the inner wall of said jamb, a parting platecarried by one of said inner wall plates, said inner wall plates beingbent to form with said parting plate two vertical tubular wells exterlorof said jamb, said parting plate be ing detachably fastened to said1nner wall plate and said inner wall plate being detachably fastened tosaid outer wall plate.

6. In a metal window construction a lintel having a horizontalsemi-tubular frame and having carried below and exterior thereof ahorizontal compartment with a horizontal slot extending therefrom toreceive the top plate of a windowsash.

7. In a metal window frame a lintel having a horizontal semi-tubularportion, joining means for connecting said lintel with a jamb, and adetachable pulley mounting block mounted on said joining means.

8. In a window sash and frame construction the combination of an uppersash and a lower sash, the bottom rail of said upper sash having a plateextending horizontally therefrom and formed downwardly into a lip, theupper rail of said lower sash having a plate formed horizontallytherefrom and then downwardly into a lip adapted to engage with saidfirst named lip, an extension of said first named plate extendinghorizontally from said lower sash and then formed upwardly, a Z shapedhorizontal bar carried by said upper rail of said lower sash and havinga weather strip thereon adapted to meet with said last named extensionof said lower rail of said upper sash.

9. In a metal window frame having a lintel and aja-mb, means for joiningsaid lintel and said jamb to form a corner and a detachable pulleymounting block mounted at said corner.

CLAUDE D. ENOCHS. JULIUS J. BARON.

